In robot applications, drive motors are a serious consideration and DC motors have specific capabilities, making them a small ideal choice. There are four types of DC motors. Simply put, a DC motor can convert DC electrical energy into mechanical energy. This is different from AC motors. This is to provide AC power to the motors in the most basic range. DC motors are very suitable for use in the robotics field because they allow robots to be charged. For different robot applications, this provides great Advantages, especially mobile and collaborative robots.
This is not to say that the robot can be used in the robot like an AC synchronous brushless servo motor, which helps the precise control of the robot's movement. The drive electronics of these motors work from a DC power supply.
To determine your drive motor, you must first create an overview of the robot to determine its size, its weight, its speed, operation mode, and working environment, as well as the joint motions it needs. All these factors will inform you of the choice of drive motor.
In addition to using batteries to facilitate movement, the key to making DC gear motor
very suitable for robotic applications is the speed variable and torque.
1. Speed variable
The ideal feature of a DC motor is that it can provide different variable speeds-a wide range below or above the rated speed. There are three ways to control the speed of a DC motor. Because the motor speed is directly proportional to the supply voltage. By changing the supply voltage, you can change the speed. In addition, due to the problem of field winding, the speed of the motor is inversely proportional to the magnetic flux. The speed of the motor, which is inversely proportional to the armature voltage, drops. By changing the armature voltage and impedance, the speed of the motor can be changed.
The main advantage of using DC motors in robots is its high torque characteristics. They can have a high starting torque for driving heavy loads. They can also make the rated speed exceed the constant torque, while the shaft power is different from the speed.
3. Further consideration
It is worth considering that the DC motor is free from reactive power-this is not real power at all, but refers to power in volts and amperes. Because there is no additional power requirement to supply the load. In addition, in addition to rapid startup and acceleration. DC motors are equally effective, when rapid twisting and stopping are needed.
Although they are an expensive option, DC motors can provide many capabilities, making them an ideal drive motor in robotics applications.