Inertia of planetary reducer: the rotational inertia of the planetary reducer depends on whether you can control the start or stop of the motor, that is, whether it is stable when it starts or stops. The planetary reducer can enlarge the rotary inertia of the servo motor to the square of the reducer speed ratio, for example, 1 to 10 times, and then enlarge the rotary inertia by 100 times.

Inertia matching: the planetary reducer has the moment of inertia, which is a very important parameter of the planetary reducer. Many times we find that according to the formula, the speed and torque are the same, but there is still a problem with the planetary reducer we choose. At this time, we need to pay attention to the moment of inertia.

There are different formulas for calculating inertia of rotating systems with different structures. It is mainly explained here that when the load can rotate and the inertia is reduced to the motor shaft according to the reciprocal times of the transmission ratio and the square, 1/i square times

1. When solving this problem, first simplify the complex problem, then find one or two entry points, use existing theoretical formulas to derive and calculate the results, and then compare and discuss. This paper discusses the accuracy and reliability of the selected instruments, as well as the basis for taking values of various parameters, lists other interference factors, eliminates secondary conditions, and draws conclusions.

2. Boundary conditions are added to verify the reliability of the conclusions. Here we do not consider the differences between common three-phase asynchronous motors, variable frequency motors, servo reducers, DC motors, etc.

So simply speaking, we want to use the limited planetary reducer models in a wider space. It seems so. As long as we have different gear ratios, only one planetary reducer can complete all the work. This is obviously a delusion, because our planetary reducer has a more important parameter, the rated power, so we started to raise it.

Matching load moment of inertia: the inertia of the servo control motor is relatively small. In general, the load inertia converted to the servo motor work itself cannot exceed 4 times the inertia of the servo motor technology itself. However, there are many kinds of loads in practical application. If the inertia that can be loaded is too far from the inertia that the motor can accept, the response speed of the servo motor will be greatly improved, This will affect the production management efficiency and increase the dynamic analysis error. The precision planetary reducer can play a key role in matching inertia.

The above is an introduction to the inertia matching of the planetary reducer. If you need a planetary reducer, you are welcome to consult the Newgear manufacturer.