Gear reducers for DC motors are a common type of speed reduction device. Their main functions are to increase output torque, reduce output speed, and change the coaxial direction. DC geared motors are also called miniature geared motors or gearboxes. What types of DC geared motors are mainly used in practical applications? Tianfu Micro Motors will provide a brief explanation below.
Common DC geared motors typically have a diameter of less than 38mm, a voltage of less than 24V, and a reduction ratio range of 2 to 2000. Gear reducers are made of either metal or plastic gears, and their applications vary depending on the parameters. Currently, commonly used DC geared motors include gear reducers, planetary reducers, and coreless reducers.
1. Gear reducer motor
A miniature geared motor is a closed-loop transmission speed reduction device for miniature motors (also known as a miniature geared motor). It is a combination of a speed reducer and a motor (or motor) used to reduce speed and increase torque to meet the needs of mechanical equipment. This combination can also be called a gear reducer or a geared motor, etc.
2. Planetary geared motor
Planetary gearboxes have better rigidity and precision than other types of gearboxes. They can be used in combination with micro motors, stepper motors, and DC motors to reduce speed and increase torque.
3. Miniature DC geared motor
In other words, a miniature geared motor is a DC motor with a miniature gear reducer assembled on it. It can provide a lower speed and a larger torque. The output speed and torque vary greatly depending on the reduction ratio of the gear reducer. The larger the reduction ratio, the lower the speed and the greater the output torque. The more gear sets there are, the larger the reduction ratio.
4. Hollow cup geared motor
Hollow cup motors use ironless rotors. This structure eliminates eddy current losses in iron-core motors, significantly reduces weight and moment of inertia, and also reduces rotor mechanical energy loss. Hollow cup geared motors have greatly improved operating performance, with advantages such as energy saving and high efficiency. They also have controllability and drive characteristics that iron-core motors cannot achieve.
