Design And Research Of Reversible Device For Large Wind-Turbine Blade Mold

Wind power is the main form of utilizing wind energy nowadays and the advanced productive forces of the future power. Wind power requires efficient wind turbines, and wind-turbine blades is the core component of wind turbine for capturing the wind energy, so it is very important to research the manufacturing process of wind-turbine blades. Manufacturing large-scale composite material wind-turbine blades needs appropriate molding equipments. Molding equipments include mold as well as mold reversible device, pressure device, heating device, positioning device and so on. In these equipments, mold reversible device is a very important part to manufacture blade, because it is related to mold safety and blade forming.Traditional reversible device has some disadvantage, such as large vibration, low production efficiency, poor safety protection, etc.. In order to improve these deficiencies, this paper designs a new hydraulic-driven reversible device according to Hang Tian Yi Jiu company’s request. This mold, which is about 40m long and 25T weighty, can be drived by this device. The aim in driving a mold is completing merging and emerging in manufacturing process of blade according to certain requirements. This device, which has small vibration, high production efficiency and safety, can meet the technical requirements in mold reversing.Reversible device includes reversible mechanism and lifting mechanism, and the two parts are integrated into one. According to the reliability, economic and technological requirements of reversible device, this paper determines the structure form of reversible device firstly, and analyzes the force. In order to minimize the maximum pressure of reversible mechanism, the optimization model is set up. Using Matlab to optimized in order to obtain a best hinge position finally. Then, the movement plan of reversible device is determined after analyzing and comparing, and the hydraulic system is designed and calculated according to this plan. Finally, the device is modeled and its motion is simulated using SolidWorks 3D software and COSMOSMotion, COSMOS/Works plug-ins. In the meanwhile, the strength and stiffness of various parts is analyzed using FEA, and the original design is modified and improved based on the analysis results.This article, which designs the mechanical parts and the hydrulical parts of reversible device, establishes the basis of PLC control part.