【China Deep Hole Rig Tr…

The boiler safety valve is one of the most important safety accessories to ensure the safe operation of the boiler. Whether it can be opened accurately and reliably is of great significance to the safe operation of the boiler. In this paper, the author analyzes and discusses the common faults o…

In the context of the economic growth downturn, the lighting and LED industries have entered the traditional off-season as scheduled. Recently, both manufacturers and distributors have complained that it is difficult to do business. It is understood that the industry has changed in the near fut…

Solution For the planetary drive gear tooth load distribution, increase the comprehensive elastic coefficient ki on the input and output paths of any planetary gear or reduce the meshing elastic coefficient of any planetary gear and center gear tooth to kxi, which can reduce the maximum to…