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电机的选择方法

2025年9月03日

电机的选择方法(Motor's selection)

最佳选择需要考虑到电源、控制、运转条件等因素来选择无芯、铁芯或是无刷的电机。如果希望由敝公司代为选择的话，请确认好下述各项条件。
(Power supply, control option, operation environment, no core, iron core and brushless factors need to be considered during the optimal selection of the motors.The following information need to be provided if the client require our company to choose the best motors.)

  • 电源的条件：使用电压范围、整流电源或者电池、电流限制有无。
    (Range of voltage, rectified power supply or battery, any limitation of current flow.)
  • PWM、电压变动等控制的有无 (Need of PWM control, voltage fluctuation control, etc)。
  • 是否需要编码器 (Need of encoder)。
  • 运转条件（连续、间歇、正逆、驱动时间、加锁、短路制动(Running conditions (continuous, intermittent, forward/reverse, drive time, lock, short brake))。
  • 环境状态（温度、湿度等）(Environmental conditions (temperature, humidity, etc))。
  • 包括齿轮箱、编码器在内的尺寸限制(Dimensional restrictions including the gearbox and encoder)。

下面，我们来说明一下从客户要求的基本参数来选择电机和齿轮电机的程序
(Below is an example of how to choose a motor and a gear motor, according to customers' requirement(s))

供应电压(Supply voltage)  U=12 V
额定转数(Rated speed)      NT=100 rpm,
额定扭矩(Rated torque)     TN=5000 g.cm
齿轮箱减速 (Gear ratio)      100：1，
直齿轮5级传动效率为62.4% (5 stage transmission efficiency of spur gearbox is 62.4%)
齿轮减速电机额定输出功率 (Gear motor rated output power) = NT × TN×/95500=100×5000/95500=5.23W
电机额定输出功率=齿轮减速电机额定输出功率/齿轮箱传动效率=5.23/0.624=8.38W
(Rated output power of motor= rated output power of gear motor/transmission efficiency of gearbox)

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