Recently, Nanjing High-precision Transmission Equipment Manufacturing Group Co., Ltd. (hereinafter referred to as: NGC) Nanjing High-speed Gear Manufacturing Co., Ltd. re-transmitted good news. The 6MW wind turbine gearbox (FD6600C) developed by the company passed strict type test verification, including 170% overload test and 135% overspeed test, pressure, temperature, vibration and other indicators meet the standard requirements. At present, the gearbox has been successfully launched, which is another success achieved after the company successfully developed the 5MW wind turbine gearbox in March this year.
The design of the FD6600C wind turbine gearbox takes into account the possibility of being used in offshore units, and the safety strength and corrosion protection level can meet the requirements of the offshore unit. The gearbox adopts two-stage row star plus one-stage parallel-stage transmission structure. The gear strength, precision and gear material and heat treatment quality control are all implemented according to ISO6336 or DIN3990. It has compact structure, strong bearing capacity, stable and reliable transmission. The characteristics of high degree, easy disassembly and assembly, the weight, volume and comprehensive performance of the whole machine have reached the level of international advanced products.
Offshore wind power is an important part of China's new energy strategy and plays an important role in the implementation of energy conservation and emission reduction planning and the development of strategic emerging industries. China has abundant offshore wind energy resources and huge potential for offshore wind power. Nangao has been preparing for the rain and has always adhered to the development strategy of “large-scale and new-type†of wind power transmission equipment. Since the company's 3MW wind power gearbox realized mass supply market in 2011, it has successfully developed 3.6MW, 5MW and 6MW wind power gearboxes. It firmly occupies the commanding heights of domestic offshore wind power gearboxes.
As the world's leading manufacturer of wind power transmission equipment, NGC has more than 40 years of manufacturing technology and experience. The 6MW wind turbine gearbox developed by the company is designed with the actual working conditions of the fan in mind. The bearing life is calculated synchronously by several internationally renowned suppliers, and a complete set of bearings for the 6MW unit has been developed in cooperation with the bearing supplier. The gear modification is calculated by MASTA and LVR, and the stress test is carried out to obtain the actual tooth surface stress distribution of each gear. The theoretical calculation and test data are combined to determine the final shape of the gear. The main components such as the planet carrier and the box are analyzed by ANSYS, and the structure is optimized to the maximum extent while ensuring the strength and rigidity of the box. At the same time, the gearbox is combined with on-line filtration and bypass filtration. The flow rate of each lubrication point is calculated in detail and verified by the lubrication flow distribution test to ensure the cleanliness and lubrication effect of the lubricating oil.
The design of the FD6600C wind turbine gearbox takes into account the possibility of being used in offshore units, and the safety strength and corrosion protection level can meet the requirements of the offshore unit. The gearbox adopts two-stage row star plus one-stage parallel-stage transmission structure. The gear strength, precision and gear material and heat treatment quality control are all implemented according to ISO6336 or DIN3990. It has compact structure, strong bearing capacity, stable and reliable transmission. The characteristics of high degree, easy disassembly and assembly, the weight, volume and comprehensive performance of the whole machine have reached the level of international advanced products.
Offshore wind power is an important part of China's new energy strategy and plays an important role in the implementation of energy conservation and emission reduction planning and the development of strategic emerging industries. China has abundant offshore wind energy resources and huge potential for offshore wind power. Nangao has been preparing for the rain and has always adhered to the development strategy of “large-scale and new-type†of wind power transmission equipment. Since the company's 3MW wind power gearbox realized mass supply market in 2011, it has successfully developed 3.6MW, 5MW and 6MW wind power gearboxes. It firmly occupies the commanding heights of domestic offshore wind power gearboxes.
As the world's leading manufacturer of wind power transmission equipment, NGC has more than 40 years of manufacturing technology and experience. The 6MW wind turbine gearbox developed by the company is designed with the actual working conditions of the fan in mind. The bearing life is calculated synchronously by several internationally renowned suppliers, and a complete set of bearings for the 6MW unit has been developed in cooperation with the bearing supplier. The gear modification is calculated by MASTA and LVR, and the stress test is carried out to obtain the actual tooth surface stress distribution of each gear. The theoretical calculation and test data are combined to determine the final shape of the gear. The main components such as the planet carrier and the box are analyzed by ANSYS, and the structure is optimized to the maximum extent while ensuring the strength and rigidity of the box. At the same time, the gearbox is combined with on-line filtration and bypass filtration. The flow rate of each lubrication point is calculated in detail and verified by the lubrication flow distribution test to ensure the cleanliness and lubrication effect of the lubricating oil.
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