A way to identify the advantages and disadvantages of a reducer – a KUKA robot

01 Transmission power: The output power decreases

Transmission power is one of the important evaluation indicators of reducer. To test the transmission power requires professional equipment, and it is difficult for customers to measure specific data, but it is possible to do horizontal comparison. Heating is the most intuitive comparison method, we have learned physics tells us that energy is conserved, and the larger heat emitted means that more power is used to eliminate friction in the motor, and the output power is naturally less. If the output power is less, the load capacity will naturally be weak, which will lead to a lack of force, the acceleration will naturally be small, and the cycle time will naturally be slow.

A way to identify the advantages and disadvantages of a reducer – a KUKA robot

A way to identify the advantages and disadvantages of a reducer – a KUKA robot

02 Lifespan: Quality is determined at all times

The life of the reducer mainly depends on the life of the bearing, generally speaking, the bearing is the first to be damaged, especially the harmonic reducer. In the case of RV reducers, the planetary structure is also a vulnerable point. The condition of early wear and tear will generally appear in a few months to a year, depending on the operation situation, so those reducer manufacturers that take advantage of the increase in demand for robots and ship a large number of reducers should pay attention.

03 Heating: Accuracy is still heat

The accuracy of the reducer depends on the degree of meshing of the gear, the meshing gap is too large, the worse the accuracy of the reducer, and the method of micro interference, the accuracy will improve, but it will lead to the problem of excessive heating. On the RV reducer, the difference in heating using the Teijin structure is not so obvious, and the same harmonic reducer, the heating degree of different brands is much different. Not to mention anything else, in harmonics, HD is the only manufacturer that can have both high accuracy and low heat.

04 Accuracy: Consider the important indicators of the reducer

There are two kinds of this, one is angular transmission accuracy, which will be marked in the reducer manual, which affects the absolute positioning accuracy of the robot; The other is the repeated positioning accuracy, which is not in the reducer manual, which affects the repeated positioning accuracy of the robot. Angular transmission accuracy, general reducer manufacturers have professional equipment, but customers can also plan some simple methods to measure. The repeatability is also the same.

05 Oil leakage: how to distinguish between real and fake oil leakage?

No matter what kind of reducer, this is a problem that must be faced. The cause of oil leakage is more complicated, involving the brand of oil seal, the installation of oil seal, the processing technology of the shaft, the use method and so on. And oil leakage is also divided into real oil leakage and fake oil leakage. The so-called false oil leakage refers to the oil leakage shortly after operation, the amount of oil leakage is not large, and it does not appear after a short period of time. This is generally an internal release of pressure, and when the pressure is released, it will be fine. The time point of the real oil leakage is uncertain, it may be leaked at the beginning, and then it is likely to be a product quality or installation quality problem; It is also possible that it appears after a long period of operation, which is generally a problem of the life of the oil seal. Improper use outside.

A way to identify the advantages and disadvantages of a reducer – a KUKA robot

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