The gearbox is an important part of

The gearbox is an important part of the gearbox, which carries the force of the wind wheel and the response force generated when the gear is driven. The box must be hard enough to bear the force and moment to prevent deformation and ensure quality. The design of the box shall be in accordance with the layout, processing and assembly, inspection and maintenance requirements of the wind turbine transmission. Attention should be paid to the reaction forces and their relative values in different directions of bearing support and base support, the appropriate support structure and wall thickness should be selected, and necessary reinforcement ribs should be added. At the same time, the rigid position must be consistent with the direction of the force causing the box deformation. For the selection of gearbox materials, cast iron gearbox can play a role of shock absorption and easy cutting, which is suitable for mass production. The common materials are nodular cast iron and other high-strength cast iron. In the design of casting box, the sudden change of wall thickness should be avoided, the difference between thickness and wall should be reduced, and shrinkage cavity and porosity should be avoided.