This is the last in a multi-part series on gear reducers. In this last part we look at some additional considerations for selecting the optimal gear reducer. (Click forPart 1和Part 2）
这里的信息由Bodine Electric Company提供。
Aside from having the required technical specifications for selecting the right gear reducers, what other considerations are there? A few of the more common ones are discussed below.
Ambient temperature
温度是重要但有时被忽视的考虑因素。例如，电动机等级基于一定的环境温度，通常为40°C。如果该应用是具有更高环境温度的连续义务，则可能需要具有较高扭矩额定值的电动机。
占空比
对于电动机和齿轮降低，占空比会影响电动机的温度升高并影响齿轮磨损速度。如果应用程序具有间歇性的占空比，则可以使用扭矩额定值较低的电动机。但是，频繁的起点和停止可以降低预期寿命。这也与装备制造商在目录中发布的服务因素有关。
Selecting the optimum motor or gearmotor includes considering factors such as ambient temperature, duty cycle, as well as radial and axial loading. (Image via Bodine Electric)
Form factor
外形是另一个可以影响操作的参数。例如，当使用直流电动机速度控件时，来自控件的输出直流电压的外形因素会影响电动机尺寸和齿轮比，如果完全需要换档器。提高运动温度的一件事是未经过滤的控制。这意味着可能需要大于计算的电动机，尤其是在占空比连续的情况下。电动机速度也将较慢，因为此类控件的输出电压低于过滤的控件。这就是为什么在计算齿轮比时使用正确的电动机速度如此重要的原因。
径向和轴向载荷
Loading can impact motor bearings as well. In particular, motors have different types and sizes of bearings that each have different radial and axial loading capacities. Here again, a larger motor than calculated may be required depending on the load capacities. For instance, applications with high radial load such as pinch rollers and belt drives may require a larger motor. But also applications with high axial load such as lead screws may require a larger motor too. By larger in this sense is meant a motor that is more physically robust, not necessarily one that has more output power.
Filed Under:运动控制技巧
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