In the robot, the actuator is divided into motor drive and hydraulic drive. The most common is motor drive, and the motors used in the robot are mostly DC reduction motors. The following is Donghong planetary reduction brushless motor bldc4260+g, which is the design of planetary gearbox plus brushless motor as the name suggests. The DC power supply current is DC, so batteries can be used for power supply, This is also the reason why brushless DC motor is most widely used in robots.

   In the robot, the motor is required to operate within the range of low speed to torque. Therefore, planetary reducer is added in the design. Planetary reduction brushless motor has the characteristics of high output torque, low speed, simple use, large selection range, etc. At the same power, the volume of the planetary speed reduction brushless motor is 30% smaller than that of the brush motor, and the electric energy conversion rate is more than 80%, which is 50% more energy-saving than the traditional motor. It can run continuously for 20000 hours without failure and maintenance.

   Users can select the motor according to its working voltage, output torque, speed, power and outer diameter.