Requirements for installation of wind turbine gearbox

The gearbox of wind turbine is an important mechanical component. Its main function is to transfer the power generated by the wind turbine under the action of wind to the generator and make it get the corresponding speed.

As the wind turbine gearbox unit is installed at the wind inlets of mountains, wilderness, beaches, islands and other places, it is affected by the irregular wind force of changing direction and load and the impact of strong gusts. It is always affected by extreme heat and cold and extreme temperature difference. In addition, the natural environment is inconvenient for traffic. The gearbox is installed in the narrow space on the top of the tower. Once a fault occurs, it is very difficult to repair, Therefore, its reliability and service life are much higher than those of ordinary machinery. For example, in addition to the mechanical properties under normal conditions, the requirements for component materials should also have the characteristics of cold brittleness resistance under low temperature conditions; The gear box shall be ensured to work stably to prevent vibration and impact; Ensure adequate lubrication conditions, etc. For areas with huge temperature difference between winter and summer, appropriate heating and cooling devices shall be configured. Monitoring points shall also be set to remotely control the operation and lubrication status.

Different types of wind turbines have different requirements, and the layout and structure of gear boxes vary accordingly. Fixed parallel shaft gear transmission and planetary gear transmission are the most common for horizontal axis wind turbines in the wind power industry.