The role of planetary reducer in servo control

What is servo control? Servo control refers to the effective control of changes in the position, velocity, and acceleration of object motion. It is one of the most important activities of human beings to generate motion and control the movement of objects for a certain purpose. There are usually three types of servo control methods: speed control, torque control, and position control. This article mainly analyzes the role of planetary reducer in servo control. Interested parties can learn about it.

Planetary reducer

The precision planetary reducer is a mechanical energy conversion link controlled by mechanical motion. Through the precision planetary reducer, the torque of the motor is obtained and the speed is reduced. On the contrary, the rotational inertia of the load is reduced by coupling the precision planetary reducer with the motor.

The three basic functions of planetary reducers in servo control:

1. Reduce the speed of the servo motor

The rated power of servo motors is generally reflected in speeds ranging from 1000rpm to 6000rpm, or even up to 10000rpm or above. Such high speeds are rarely used in practical use. At the same time, in order to fully utilize the rated power of the motor, it is necessary to use a planetary reducer with an appropriate reduction ratio to achieve the required working speed.

2. Torque amplification

When the power input from the motor to the reducer is constant, the decrease in output speed of the reducer will inevitably result in a larger output torque. This is an important reason why Babman Industrial Technology chose planetary reducers in many cases.

3. Moment of inertia of matching load

In general, the inertia of a servo motor is small. Generally speaking, the load inertia converted into the servo motor itself cannot exceed 4 times the inertia of the servo motor itself (different brands of servo motors have very specific design data). In practical applications, there are many types of loads. If the inertia of the load differs significantly from the acceptable inertia of the motor, it will greatly reduce the response speed of the servo motor, This affects production efficiency and increases dynamic errors. At the same time, planetary reducers can also play a key role in inertia matching.