1. Oil spill
No matter what the Liming reducer, this is a problem that must be faced. The cause of oil leakage is more complicated, involving oil seal brand, oil seal installation, shaft processing technology, use method, etc., and oil leakage can be divided into real oil leakage and fake oil leakage.
The so-called false oil leakage means that the oil leakage occurs shortly after the operation, the amount of oil leakage is not large, and no longer occurs after a short time. This is generally the release of internal pressure. Once the pressure is released, it will be fine. The time when the real oil leak occurs is uncertain. It may have leaked at the beginning. At this time, it may be a product quality or installation quality problem; it may also occur after a long time of operation. This is generally an oil seal life problem (use Improperly outside).
Many people are willing to use oil spills to attack domestic reducers. Yes, it is true that on this issue, the probability of domestically produced reducers will be relatively high. It may be that the technology is immature or the use of relatively general oil seals. However, this is by no means a characteristic of the domestically produced reducer. We don't remember this pot. It is an imported reducer. Let's not talk about the brand. It is not one of them, and it has been tested for oil leakage. Those customers who have used imported brand robots will also be aware of this problem. As for how the manufacturer explained it, I don't know. So it's not imported non-leakage, but the probability is small, you don't know it.
There are two types, one is the angular transmission accuracy, which will be marked in the Liming reducer manual, which affects the positioning accuracy of the robot; the other is the repeated positioning accuracy, which is not in the Liming reducer manual. This affects the repeated positioning accuracy of the robot. Angle transmission accuracy is generally provided by reducer manufacturers with professional equipment, but customers can also design some simple methods to measure them. The same is true for repeat positioning accuracy.
Regarding the new Liming reducer, it is OK for many manufacturers to reach the nominal 1 arc minute or less, but the bigger problem is consistency and stability. It is possible that most manufacturers have reached the standard accuracy at the beginning, but after a few months, either the accuracy will jump up and down, or it will get worse and worse.
The same is true for repeat positioning accuracy. It is no problem to achieve high repeat positioning accuracy in a short time, but it is difficult to maintain it after a long time.
This is relatively intuitive, but a point that few people pay attention to. In fact, heating is also related to the accuracy mentioned above. The stability accuracy depends on the meshing degree of the gear. If the meshing gap is too large, the accuracy of the reducer will be poor. However, if the micro-interference method is selected, the accuracy will be improved, but it will cause excessive heat generation. The difference between the heat generation of the selected structure It is not so significant, but the same is the harmonic reducer, the degree of heating of different brands is much different.
Of course, heat is not only related to gears, but also related to grease and installation. The quality of grease and the ability to install will have a significant impact. There are a lot of detailed craftsmanship here, depending on the technical capabilities of each robot manufacturer.
Apr 11, 2022
Apr 06, 2022