在减速机家族中，行星减速机以其体积小，减速范围广，精度高等诸多有点，而被应用于伺服、步进、直流等传动系统中。其作用就是在保证精密传动下，主要被用来降低转速增大扭矩和降低负载/电机的转动惯量比。

In reducer family, planetary reducer is applied to servo, step and DC tran***ission systems because of its ***all volume, wide range of deceleration and high accuracy. Its role is to ensure the precision drive, mainly used to reduce the rotational speed to increase the torque and reduce the load / motor inertia ratio.

当选用斜齿轮减速机时有以下几点需要注意：

允许输入轴径：减速机的输入轴孔与电机输出轴一般是通过一个厚度可以变化的套环来连接的。当不加套环时减速机输入轴孔为高值。

When choosing a helical gear reducer, there are several points to be paid attention to:

Allowable diameter

The input shaft of the reducer and the output shaft of the motor are generally connected by a sleeve that can be changed by a thickness. The input shaft hole of the reducer is the maximum when the ring is not added.

降低减速机运转时的齿轮传动噪声已成为行业内的重要研究课题，国内外不少学者都把齿轮传动中轮齿啮合刚度的变化看成是齿轮动载、振动和噪声的主要因素。用修形的方法，使其动载荷及速度波动减至小，以达到降低噪声的目的。这种方法在实践中证明是一种较有效的方法。在减速机家族中，行星减速机以其体积小，减速范围广，精度高等诸多有点，而被应用于伺服、步进、直流等传动系统中。

Reducing the gear tran***ission noise of the reducer has become research topic in the industry. Many scholars both at home and abroad regard the change of gear tooth meshing stiffness as the main factor of gear dynamic load, vibration and noise. The method of modification is used to minimize the dynamic load and speed fluctuation in order to reduce noise. This method is proved to be a more effective method in practice.