1. Oil leakage
No matter what kind of Liming reducer, this is a problem that must be faced. The reason for oil leakage is more complicated, involving oil seal brand, oil seal installation, shaft processing technology, usage methods, etc., and oil leakage is also divided into real oil leakage and fake oil spills.
The so-called false oil leakage means that oil leakage occurs shortly after operation, the amount of oil leakage is not large, and it does not appear again after a short period of time. This is generally the release of internal pressure, and it will be fine after the pressure is released. The real oil leakage The time of appearance is uncertain, it may be leaking at the beginning, then it is likely to be a problem of product quality or installation quality; it may also appear after a long time of operation, which is generally a problem of oil seal life (improper use).
Many people are willing to use oil leakage to attack domestic reducers. Yes, it is true that on this issue, the probability of domestic reducers will be relatively high. It may be that the process is immature, or a more general oil seal is used. However, this It is by no means the characteristics of the domestic reducer. We do not carry this pot. It is the imported reducer. We will not say the brand. It is not a company, and the oil leakage has been tested. Those customers who have used imported brand robots a lot will also know this. Question. As for how the manufacturer explained it, I don't know. So it's not imported oil that doesn't leak, just the probability is small, you don't know it.
There are two types here, one is the angular transmission accuracy, which will be marked in the manual of Liming reducer, which affects the positioning accuracy of the robot; the other is the repeated positioning accuracy, which is not in the manual of Liming reducer. This affects the repeated positioning accuracy of the robot. Generally, the reducer manufacturers have professional equipment for the angular transmission accuracy, but the customer can also design some simple methods to measure it. The repeated positioning accuracy is also the same.
For the new Liming reducer, many manufacturers are OK to reach the nominal 1 arc minute or less, but the bigger problem is consistency and stability. Most manufacturers may have reached the standard at the beginning, but after a few months After that, either the accuracy jumps up and down, or it just gets worse and worse.
The same is true for the repeated positioning accuracy. It is no problem to achieve a high repeated positioning accuracy in a short time, but it is difficult to maintain it after a long time.
This is more intuitive, but it is a point that few people pay attention to. In fact, the heat generation is also related to the accuracy mentioned above. The stable accuracy depends on the meshing degree of the gears. If the meshing clearance is too large, the accuracy of the reducer will be poor. method, the accuracy will be improved, but it will lead to the problem of excessive heat generation. The difference between the heat generation of the selected structure is not so significant, and the same harmonic reducer, the heat generation degree of different brands is much worse.
Of course, heat generation is not only related to gears, but also related to grease and installation. The quality of grease and installation ability will have a significant impact. There are many detailed processes here, which depends on the technical capabilities of each robot manufacturer. .