Whether the gearbox manufacturer is reliable or not, no one can hide these points from you

these points from you

After years of testing, the industry has summarized some performance indicators for evaluating the quality of reducers, especially in areas where problems are prone to occur during the development process of reducers.

No one can escape these pitfalls. Whether they can be solved and when they will be solved depends on the research and development capabilities.

So, the next time a gearbox manufacturer comes knocking on your door, ask if you have encountered these problems and to what extent they have been resolved, and you will know whether this company is reliable or not.

1. Oil leakage

No matter what kind of gearbox, this is a problem that must be faced.

The reasons for oil leakage are quite complex, involving the brand of oil seal, oil seal assembly, shaft processing technology, usage methods, etc. Moreover, oil leakage can be divided into real oil leakage and fake oil leakage.

The so-called false oil leakage refers to the occurrence of oil leakage shortly after operation, with a small amount of oil leakage and no longer occurring after a short period of time. This is usually an internal release of pressure, and once the pressure is released, everything will be fine.

The timing of the actual oil leakage is uncertain, and it may have leaked from the beginning, which is likely due to product or assembly quality issues; It is also possible that it may occur after a long period of operation, which is usually a problem with the lifespan of the oil seal (except for improper use).

Many people are willing to use oil leakage to attack domestic gearboxes. That's right, it is true that the probability of domestic reducers occurring on this issue is relatively high, which may be due to immature technology or the use of relatively ordinary oil seals.

However, it must be said that this is by no means a characteristic of domestic reducers. If we don't take the blame, it will be imported reducers (not to mention the brand), which are not the same company and have also been tested for oil leakage. Customers who have extensively used imported brand robots will also be aware of this issue. As for how the manufacturer explained it, I don't know.

So it's not imported without oil leakage, it's just a small probability that most people don't know.

2. Accuracy

This includes two types, one is angular transmission accuracy, which is marked in the gearbox manual and affects the absolute positioning accuracy of the robot;

Another type is the repeatability accuracy, which is not included in the gearbox manual and affects the repeatability accuracy of the robot. The accuracy of angular transmission is generally measured by professional equipment from gearbox manufacturers, but customers can also design some simple methods to measure it themselves. The accuracy of repeated positioning is also the same.

For new reducers, achieving a nominal arc minute or less is acceptable for many manufacturers, but the biggest issue is consistency and stability. Perhaps most manufacturers initially meet the accuracy standards, but after a few months, either the accuracy jumps up and down, or it directly deteriorates.

The same goes for repeat positioning accuracy. It is not a problem to achieve high repeat positioning accuracy in a short period of time, but over time, it becomes difficult to maintain it.